Fix compile errors for NDK (#82)

make_unique<TableView> causes ambiguous call with NDK's default gnustl.
Compiler fails to decide which constructor of Query to use.

src/impl/collection_change_builder.cpp

@@ -20,6 +20,8 @@
 
 #include <realm/util/assert.hpp>
 
+#include <algorithm>
+
 using namespace realm;
 using namespace realm::_impl;
 
@@ -49,7 +51,7 @@ void CollectionChangeBuilder::merge(CollectionChangeBuilder&& c)
 
     // First update any old moves
     if (!c.moves.empty() || !c.deletions.empty() || !c.insertions.empty()) {
-        auto it = remove_if(begin(moves), end(moves), [&](auto& old) {
+        auto it = std::remove_if(begin(moves), end(moves), [&](auto& old) {
             // Check if the moved row was moved again, and if so just update the destination
             auto it = find_if(begin(c.moves), end(c.moves), [&](auto const& m) {
                 return old.to == m.from;
@@ -79,7 +81,7 @@ void CollectionChangeBuilder::merge(CollectionChangeBuilder&& c)
     // Ignore new moves of rows which were previously inserted (the implicit
     // delete from the move will remove the insert)
     if (!insertions.empty() && !c.moves.empty()) {
-        c.moves.erase(remove_if(begin(c.moves), end(c.moves),
+        c.moves.erase(std::remove_if(begin(c.moves), end(c.moves),
                               [&](auto const& m) { return insertions.contains(m.from); }),
                     end(c.moves));
     }
@@ -124,7 +126,7 @@ void CollectionChangeBuilder::clean_up_stale_moves()
     // Look for moves which are now no-ops, and remove them plus the associated
     // insert+delete. Note that this isn't just checking for from == to due to
     // that rows can also be shifted by other inserts and deletes
-    moves.erase(remove_if(begin(moves), end(moves), [&](auto const& move) {
+    moves.erase(std::remove_if(begin(moves), end(moves), [&](auto const& move) {
         if (move.from - deletions.count(0, move.from) != move.to - insertions.count(0, move.to))
             return false;
         deletions.remove(move.from);

src/results.cpp

@@ -446,7 +446,7 @@ Query Results::get_query() const
             // The TableView has no associated query so create one with no conditions that is restricted
             // to the rows in the TableView.
             m_table_view.sync_if_needed();
-            return Query(*m_table, std::make_unique<TableView>(m_table_view));
+            return Query(*m_table, std::unique_ptr<TableViewBase>(new TableView(m_table_view)));
         }
         case Mode::LinkView:
             return m_table->where(m_link_view);